ObjFW  Diff

	[OBJCFLAGS="$OBJCFLAGS -Wshorten-64-to-32"])
AX_CHECK_COMPILER_FLAGS([-Wundeclared-selector -Werror],
	[OBJCFLAGS="$OBJCFLAGS -Wundeclared-selector"])
AX_CHECK_COMPILER_FLAGS([-Wsemicolon-before-method-body -Werror],
	[OBJCFLAGS="$OBJCFLAGS -Wsemicolon-before-method-body"])
AX_CHECK_COMPILER_FLAGS([-Wobjc-missing-property-synthesis -Werror],
	[OBJCFLAGS="$OBJCFLAGS -Wobjc-missing-property-synthesis"])
AX_CHECK_COMPILER_FLAGS([-Watomic-properties -Werror], [
	OBJCFLAGS="$OBJCFLAGS -Watomic-properties"
	TESTS_OBJCFLAGS="$TESTS_OBJCFLAGS -Wno-atomic-properties"
])

AC_MSG_CHECKING(whether Objective C compiler supports properties)
AC_TRY_COMPILE([
	#ifdef __has_attribute
	# if __has_attribute(objc_root_class)
	__attribute__((__objc_root_class__))
	# endif